<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1,minimum-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no,viewport-fit=cover">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>李小虎的简历</title>
</head>
<body>
    
<style id="style" ></style>
    <div id="html"></div>
    <div id="div1Wrapper">
<div id="div1"></div>
    </div>
     <style>
         *{margin: 0; padding: 0;}
         *{box-sizing: border-box;}
         *::after{
             box-sizing: border-box;
         }
         *::before{
             box-sizing: border-box;
         }
         #demo{
             word-break: break-all;
         }

      #div1{
      position: fixed;
    left:50%;
    transform: translateX(-50%);
    top:50px;
}
#div1::before{
    content: '';
display: block;
position: absolute;
}
#div1::after{
      content: '';
    display: block;
position: absolute;
}
@media (max-width: 500px){
    #html{
height: 50vh;
overflow: auto;
    }
    #div1Wrapper {
        height: 50vh;
    }
    #div1{
        position: relative;
         top: 0;
        right: 0;
    }

}
</style>
<script src="main.js" ></script>
</body>

</html>